USN QHUSH Black is a high-stimulation pre-workout that powers sessions with strong energy, focused drive and boosted muscular performance. Core ingredients such as citrulline malate boost blood flow for bigger pumps, and caffeine and theanine sharpen focus. USN remains a trusted name in sports nutrition, and the formula is built to strict quality standards. Dr. Pérez-Guisado from the University of Jaén found citrulline malate enhances endurance.

Available Sizes & Variants:

220g powder – handy size for home workouts and easy dosing.

Benefits & Features:

• Feel energised before training for longer sessions.
• Caffeine paired with L-theanine helps sharper focus and a smoother energy, so you stay on task without the jitters during tough sets and mid-session moves.
• L-Citrulline Malate enhances blood flow for bigger pumps and quicker nutrient delivery during sessions.
• Beta-alanine helps sustain high intensity, supporting performance through the later parts of workouts.
• Vitamins B3, B6 and B12 back energy metabolism so fatigue sets in later and you can train with steadier momentum through longer sessions without dropping effort mid workout.

USN has long stood as a trusted name in sports nutrition, delivering high quality products that athletes rely on. The Black formula pairs a high dose of citrulline malate and beta alanine for endurance and buffering, with caffeine and theanine for crisp focus and smooth energy. The blend is designed for rapid absorption, aided by black pepper extract, and it’s a popular choice for athletes who sometimes add protein powder or collagen peptides powder to their regime for overall daily nutrition. Dr. Pérez-Guisado from the University of Jaén found citrulline malate enhances endurance.